2011 | OriginalPaper | Chapter
Stochastically Incomplete Manifolds and Graphs
Author : Radosław Krzysztof Wojciechowski
Published in: Random Walks, Boundaries and Spectra
Publisher: Springer Basel
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We survey geometric properties which imply the stochastic incompleteness of the minimal diffusion process associated to the Laplacian on manifolds and graphs. In particular, we completely characterize stochastic incompleteness for spherically symmetric graphs and show that, in contrast to the case of Riemannian manifolds, there exist examples of stochastically incomplete graphs of polynomial volume growth.